A NEW DEVICE A NEW DEVICE FOR MEASURING FOR MEASURING HAIR LOSS & GROWTH HAIR LOSS & GROWTH Bernard Cohen, MD Bernard Cohen, MD DIPLOMATE, AMERICAN BOARD OF HAIR RESTORATION SURGERY DIPLOMATE, AMERICAN BOARD OF HAIR RESTORATION SURGERY March 17, 2006 March 17, 2006 ISHRS ANNUAL MEETING --- SAN DIEGO, CA ISHRS ANNUAL MEETING --- SAN DIEGO, CA
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A NEW DEVICEA NEW DEVICEFOR MEASURINGFOR MEASURING
HAIR LOSS & GROWTHHAIR LOSS & GROWTH
Bernard Cohen, MDBernard Cohen, MDDIPLOMATE, AMERICAN BOARD OF HAIR RESTORATION SURGERYDIPLOMATE, AMERICAN BOARD OF HAIR RESTORATION SURGERY
March 17, 2006March 17, 2006ISHRS ANNUAL MEETING --- SAN DIEGO, CAISHRS ANNUAL MEETING --- SAN DIEGO, CA
A method and device for measuringA method and device for measuringfluctuations in fluctuations in
the cross-sectional area of hair inthe cross-sectional area of hair ina pre-determined area of scalpa pre-determined area of scalp
OFFICE PHYSICIANSOFFICE PHYSICIANSare unable to measureare unable to measure
HAIR LOSS & GROWTHHAIR LOSS & GROWTH
HAIR LOSSHAIR LOSSAFFECTSAFFECTS
75% of all adult men 75% of all adult men 10% of women over 5010% of women over 50
IN THE USA ALONEIN THE USA ALONE
HAIR LOSSHAIR LOSS TREATMENTTREATMENTIS AIS A
$2 BILLION$2 BILLIONINDUSTRYINDUSTRY
NORWOOD SYSTEMNORWOOD SYSTEM
PHOTOGRAPHYPHOTOGRAPHYMINIMALMINIMAL MILDMILD
MODERATEMODERATE SEVERESEVERE
HAIR COUNTINGHAIR COUNTING
NORMAL BALDING
HAIR COUNTINGHAIR COUNTINGA 50 micron hair and a 70 micron hair both A 50 micron hair and a 70 micron hair both countcount as as
ONE HAIRONE HAIR
r2 = CROSS SECTIONAL AREA80 microns = 3.14 x 1600 = 5024 microns80 microns = 3.14 x 1600 = 5024 microns22 72 microns = 3.14 x 1296 = 4069 microns72 microns = 3.14 x 1296 = 4069 microns22
CHANGING THE CHANGING THE HAIR COUNTHAIR COUNT 10% 10%
CHANGES THE HAIR MASS CHANGES THE HAIR MASS 10%10%
CHANGING THE CHANGING THE HAIR DIAMETERHAIR DIAMETER 10% 10%CHANGES THE HAIR MASS CHANGES THE HAIR MASS 20%20%
Meaningful hair measurementMeaningful hair measurementmust include bothmust include both
DENSITYDENSITY &&
DIAMETERDIAMETER
EARLY ATTEMPT ATHAIR QUANTIFICATION
MARKING THE SITEMARKING THE SITE
ISOLATED 2 x 2 cm of SCALPISOLATED 2 x 2 cm of SCALP
EARLY PROTOTYPEEARLY PROTOTYPE
HAIR CAPTURE ELEMENTHAIR CAPTURE ELEMENT
CAPTURE & MEASURECAPTURE & MEASURE
VALUE DISPLAYED ON SCREENVALUE DISPLAYED ON SCREEN
HAIRHAIR QUANTITYQUANTITY INDEXINDEX
is is mmmm22 of HAIR of HAIR
perpercmcm22 of SKIN of SKIN
the the
QUANTITY INDEXQUANTITY INDEX REFLECTS REFLECTS
• Increase in DiameterIncrease in Diameter• Decrease in DiameterDecrease in Diameter• Increase in Density (hair count)Increase in Density (hair count)• Decrease in Density (hair count)Decrease in Density (hair count)
964382
82/96 = .85 = 85% 82/96 = .85 = 85%
15% HAIR LOSS IN ZONE 315% HAIR LOSS IN ZONE 3
HAIR QUANTIMETER HAIR QUANTIMETER MAY BE USED TOMAY BE USED TO
• Manage hair loss treatmentManage hair loss treatment
• Identify Identify ““hair losshair loss”” patients who have no loss. patients who have no loss.
• Detect early balding many years in advanceDetect early balding many years in advance
ADVANTAGESADVANTAGES• Quick - easy - inexpensive - convenientQuick - easy - inexpensive - convenient• Precise - accurate - durablePrecise - accurate - durable• Generates easily understood numbersGenerates easily understood numbers• Numbers quantify severity of hair lossNumbers quantify severity of hair loss• Numbers monitor success of treatmentNumbers monitor success of treatment• No hair or skin is cutNo hair or skin is cut• No lab or doctor is requiredNo lab or doctor is required• More scientific than present office methodsMore scientific than present office methods• Eliminates hedging, guessing, and estimationEliminates hedging, guessing, and estimation